title: 150 years of anesthesia in dentistry: the sesquicentennial approaches 1844-1994.
authors.forename: W A
authors.initials: WA
authors.lastname: MacDonnell
mesh_terms: D000766:Anesthesia, Dental / Q000266:history*; D006665:History of Dentistry; D049672:History, 19th Century; D049673:History, 20th Century